libc_r.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- *//* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is the Netscape Portable Runtime (NSPR). * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998-2000 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** *//* libc_r.h -- macros, defines, etc. to make using reentrant libc calls *//* a bit easier. This was initially done for AIX pthreads, *//* but should be usable for anyone... *//* Most of these use locally defined space instead of static library space. *//* Because of this, we use the _INIT_R to declare/allocate space (stack), *//* and the plain routines to actually do it..._WARNING_: avoid allocating *//* memory wherever possible. Memory allocation is fairly expensive, at *//* least on AIX...use arrays instead (which allocate from the stack.) *//* I know the names are a bit strange, but I wanted to be fairly certain *//* that we didn't have any namespace corruption...in general, the inits are *//* R_<name>_INIT_R(), and the actual calls are R_<name>_R(). */#ifndef _LIBC_R_H#define _LIBC_R_H/************//* strtok *//************/#define R_STRTOK_INIT_R() \ char *r_strtok_r=NULL#define R_STRTOK_R(return,source,delim) \ return=strtok_r(source,delim,&r_strtok_r)
#define R_STRTOK_NORET_R(source,delim) \ strtok_r(source,delim,&r_strtok_r)/**************//* strerror *//**************/#define R_MAX_STRERROR_LEN_R 8192 /* Straight from limits.h */#define R_STRERROR_INIT_R() \ char r_strerror_r[R_MAX_STRERROR_LEN_R]#define R_STRERROR_R(val) \ strerror_r(val,r_strerror_r,R_MAX_STRERROR_LEN_R)/*****************//* time things *//*****************/#define R_ASCTIME_INIT_R() \ char r_asctime_r[26]#define R_ASCTIME_R(val) \ asctime_r(val,r_asctime_r)#define R_CTIME_INIT_R() \ char r_ctime_r[26]#define R_CTIME_R(val) \ ctime_r(val,r_ctime_r)#define R_GMTIME_INIT_R() \ struct tm r_gmtime_r#define R_GMTIME_R(time) \ gmtime_r(time,&r_gmtime_r)#define R_LOCALTIME_INIT_R() \ struct tm r_localtime_r#define R_LOCALTIME_R(val) \ localtime_r(val,&r_localtime_r)/***********//* crypt *//***********/#include <crypt.h>#define R_CRYPT_INIT_R() \ CRYPTD r_cryptd_r; \ bzero(&r_cryptd_r,sizeof(CRYPTD)) #define R_CRYPT_R(pass,salt) \ crypt_r(pass,salt,&r_cryptd_r)/**************//* pw stuff *//**************/#define R_MAX_PW_LEN_R 1024/* The following must be after the last declaration, but *//* before the first bit of code... */#define R_GETPWNAM_INIT_R(pw_ptr) \ struct passwd r_getpwnam_pw_r; \ char r_getpwnam_line_r[R_MAX_PW_LEN_R]; \ pw_ptr = &r_getpwnam_pw_r#define R_GETPWNAM_R(name) \ getpwnam_r(name,&r_getpwnam_pw_r,r_getpwnam_line_r,R_MAX_PW_LEN_R)/*******************//* gethost stuff *//*******************/#define R_GETHOSTBYADDR_INIT_R() \ struct hostent r_gethostbyaddr_r; \ struct hostent_data r_gethostbyaddr_data_r#define R_GETHOSTBYADDR_R(addr,len,type,xptr_ent) \ bzero(&r_gethostbyaddr_r,sizeof(struct hostent)); \ bzero(&r_gethostbyaddr_data_r,sizeof(struct hostent_data)); \ xptr_ent = &r_gethostbyaddr_r; \ if (gethostbyaddr_r(addr,len,type, \ &r_gethostbyaddr_r,&r_gethostbyaddr_data_r) == -1) { \ xptr_ent = NULL; \ }#define R_GETHOSTBYNAME_INIT_R() \ struct hostent r_gethostbyname_r; \ struct hostent_data r_gethostbyname_data_r#define R_GETHOSTBYNAME_R(name,xptr_ent) \ bzero(&r_gethostbyname_r,sizeof(struct hostent)); \ bzero(&r_gethostbyname_data_r,sizeof(struct hostent_data)); \ xptr_ent = &r_gethostbyname_r; \ if (gethostbyname_r(name, \ &r_gethostbyname_r,&r_gethostbyname_data_r) == -1) { \ xptr_ent = NULL; \ }#endif /* _LIBC_R_H */